> For the complete documentation index, see [llms.txt](https://docs.invariant.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.invariant.io/platform/apache-hadoop/hive/data-types.md). # Data Types Hive provides a type system for primitive types as well as complex types. Types are associated with the columns in the tables. The following primitive types are supported - integer, boolean, string, float, double, decimal, char, varchar, date, timestamp and binary. Complex types can be built up from primitive types and other composite types using: * **Structs**: the elements within the type can be accessed using the DOT (.) notation. * **Maps (key-value tuples)**: The elements are accessed using \['element name'] notation. * **Arrays (indexable lists)**: The elements in the array have to be in the same type. Elements can be accessed using the \[n] notation where n is an index (zero-based) into the array.